Oh my, to start off I didn't expect so many great responses! Ill be responding to everyone's consatructive comments on this post. Anyone who commented I agree or good post thank you!!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Now what if Dig deep and survival let us go to space XD Anyways good ideas 
Possibly, maybe a type of device needs to be crafted to reach a moon style map. Like how you need ender eyes for an ender portal.
I'm aware the DD and Survival game modes and the biomes require overhauling, but I've been putting it off in order to add game play features that I feel help to differentiate the game from Minecraft. If I had instead spent the time overhauling Survival and biomes, then I'm stuck in a perpetual race trying to catch up to Minecraft, a race I can never win due to having less development resource.
Once I'm happy the differentiating features are close to where I want them, and we are getting close to that point, I will start to allocate some time to Survival and biomes.
Absolutely, I think TM's creative mode really blew a lot of people expectations out of the water. Especially with these new additions TM's creative gives Minecrafts creative mode a run for its money. But I think that the biomes and survival features could be changed to compete with minecrafts. Obviously TM is no triple AAA game, but with what the community has at the moment, I think it could be done.
I love DD. I have been playing on the same map for 2 years. I think of DD maps as a creative experience that you have to earn. I can agree that some skill/item jumps are a bit much and perhaps some pricing, but to change any core aspect of DD would be a terrible idea. I have taken the time needed to be a master of economizing, zoning, building, and now I am endevouring to master scripts. TMF is one of my favorite games because of DD. Sure, I could have done it all in creative, and more, but with a severely lessened sense of accomplishment. I will say that I feel survival shouldn't have shops at all. I remember playing my 'world of the beast map' on DD, legendary, with survival aspect. No mini map and the shops were extremely limited on everything. No that was survival! I still have it but the 2.0 update unlocked the shop inventory, spiders don't spawn from the trees, and the sky isn't red. It did the same to my moon map. But they are unique maps so I keep them. Please don't mutilate DD...
Obviously you have had some great experience with the DD game mode, but it seems most of what you're saying comes from past experience. No doubt DD was fun for many people, I had great fun when I first purchased the game as well. But the overhaul DD needs requires a lot of that to be changed. Im fully confident you'll have just as, if not more fun with new additions to the game mode.
I suppose so. I host my DD map often and many people have gotten to enjoy the feel of what is possible once you have put the work in. I run a kingdom, fueled by people selling loot from killing mobs and working the jobs I have set up. Once they gain some success, I have homes available. Nothing all that new, but I did it in DD. I believe DD is for patient gamers that don't mind having to hunt down blueprints and mine or otherwise earn materials for builds and such. Personally, I enjoy it. Oh and for the record... There are a lot of aspects I like but, MC is for kiddies. In my opinion, TMF blows it away with what u can do! Not not to mention MC multiplayer is limited. I have had over 900 visitors to my map. And being able to protect your map with zoning... invaluable to someone like me with 900 hours logged in 1 world.
Ditto. Most of the additions would be just that, additions. Obviously some things go and some things come in to replace them, but they definitely will make the game mode improve.
Dryym this is exactly how I pictured the system in my head. Great way of explaining it! I might add it to the OP!

This could happen by having blueprints attached to semi-randomly generated dungeons.
Say, in order to collect your blueprints for iron weapons/tools/armor, you'll need to raid a goblin camp.
And in order to get steel you must siege a castle and kill the King.
Etc.
This is definitely possible, with the new NPC AI.
Ditto. A lot can be tested to see what fits the game best.